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2010422
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Information
Patent Grant
2010422
References
Source
Patent Number
2,010,422
Date Filed
Not available
Date Issued
Tuesday, August 6, 1935
89 years ago
CPC
E21D9/06 - Making by using a driving shield
E21D9/065 - with devices for provisionally supporting the front face
US Classifications
405 - Hydraulic and earth engineering
254 - Implements or apparatus for applying pushing or pulling force
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